Cute idea for birthday bulletin board. Pop a little gift in the bag and your birthday treats are done as well! I would use the smaller gift bags from Target and put a birthday pencil in there or something!
Staple white paper bags to the wall and fill them with tissue paper. Then write the students' birthdays on the cupcakes and put a birthday pencil in the bag for them. Easy way to see the birthdays coming up and ensure that you have their gift ready.